openexr_multi.h

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/*
 * $Id: openexr_multi.h 35239 2011-02-27 20:23:21Z jesterking $ 
 *
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version. 
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * The Original Code is Copyright (C) 2006 Blender Foundation
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): Ton Roosendaal.
 *
 * ***** END GPL LICENSE BLOCK *****
 */

#ifndef _OPENEXR_MULTI_H
#define _OPENEXR_MULTI_H

/* experiment with more advanced exr api */

/* Note: as for now openexr only supports 32 chars in channel names.
   This api also supports max 8 channels per pass now. easy to fix! */
#define EXR_LAY_MAXNAME         19
#define EXR_PASS_MAXNAME        11
#define EXR_TOT_MAXNAME         32
#define EXR_PASS_MAXCHAN        8


#ifdef WITH_OPENEXR
void *  IMB_exr_get_handle                      (void);
void    IMB_exr_add_channel                     (void *handle, const char *layname, const char *passname, int xstride, int ystride, float *rect);

int             IMB_exr_begin_read                      (void *handle, const char *filename, int *width, int *height);
void    IMB_exr_begin_write                     (void *handle, const char *filename, int width, int height, int compress);
void    IMB_exrtile_begin_write         (void *handle, const char *filename, int mipmap, int width, int height, int tilex, int tiley);

void    IMB_exr_set_channel                     (void *handle, const char *layname, const char *passname, int xstride, int ystride, float *rect);

void    IMB_exr_read_channels           (void *handle);
void    IMB_exr_write_channels          (void *handle);
void    IMB_exrtile_write_channels      (void *handle, int partx, int party, int level);
void    IMB_exrtile_clear_channels      (void *handle);

void    IMB_exr_multilayer_convert      (void *handle, void *base,  
                                                                         void * (*addlayer)(void *base, char *str), 
                                                                         void (*addpass)(void *base, void *lay, char *str, float *rect, int totchan, char *chan_id));

void    IMB_exr_close                           (void *handle);


#else

/* ugly... but we only use it on pipeline.c, render module, now */

void *  IMB_exr_get_handle                      (void) {return NULL;}
void    IMB_exr_add_channel                     (void *handle, const char *layname, const char *channame, int xstride, int ystride, float *rect) {  (void)handle; (void)layname; (void)channame; (void)xstride; (void)ystride; (void)rect; }

int             IMB_exr_begin_read                      (void *handle, const char *filename, int *width, int *height) { (void)handle; (void)filename; (void)width; (void)height; return 0;}
void    IMB_exr_begin_write                     (void *handle, const char *filename, int width, int height, int compress) { (void)handle; (void)filename; (void)width; (void)height; (void)compress; }
void    IMB_exrtile_begin_write         (void *handle, const char *filename, int mipmap, int width, int height, int tilex, int tiley) { (void)handle; (void)filename; (void)mipmap; (void)width; (void)height; (void)tilex; (void)tiley; }

void    IMB_exr_set_channel                     (void *handle, char *layname, const char *channame, int xstride, int ystride, float *rect) { (void)handle; (void)layname; (void)channame; (void)xstride; (void)ystride; (void)rect; }

void    IMB_exr_read_channels           (void *handle) { (void)handle; }
void    IMB_exr_write_channels          (void *handle) { (void)handle; }
void    IMB_exrtile_write_channels      (void *handle, int partx, int party, int level) { (void)handle; (void)partx; (void)party; (void)level; }
void    IMB_exrtile_clear_channels      (void *handle) { (void)handle; }

void    IMB_exr_multilayer_convert      (void *handle, void *base,  
                                                                         void * (*addlayer)(void *base, char *str), 
                                                                         void (*addpass)(void *base, void *lay, char *str, float *rect, int totchan, char *chan_id))
                                                                        {
                                                                                (void)handle; (void)base; (void)addlayer; (void)addpass;
                                                                        }

void    IMB_exr_close                           (void *handle) { (void)handle; }

#endif



#endif /* __OPENEXR_MULTI_H */